UISearchBar自定义取消按钮

前些天工作需要做一个搜索框，需要自定义右侧的取消按钮的颜色和文字，于是上网搜了一些资料，发现都出自一个模板，有一点偏差，所以在这里更正一下，让同学们少走一点弯路。

首先初始化一个UISearchBar

- (void)initSearchBar
{
    _searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(20, 100, 300, 44)];
    _searchBar.translucent  = YES;
    _searchBar.delegate     = self;
    _searchBar.placeholder  = @"名称";
    _searchBar.keyboardType = UIKeyboardTypeDefault;
    [_searchBar setShowsCancelButton:YES];//显示右侧取消按钮
    [self.view addSubview:self.searchBar];
}

 NSLog(@"%@", [_searchBar performSelector:@selector(recursiveDescription)]);

打印结果如下：
<UISearchBar: 0x7fcff0e5a260; frame = (20 100; 300 44); text = ''; opaque = NO; gestureRecognizers = <NSArray: 0x7fcff0f4e290>; layer = <CALayer: 0x7fcff0e1acb0>>
| <UIView: 0x7fcff0f4bf60; frame = (0 0; 300 44); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x7fcff0f4d150>>
|    | <UISearchBarBackground: 0x7fcff0f4ea50; frame = (0 0; 300 44); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x7fcff0f4ee10>>
|    | <UISearchBarTextField: 0x7fcff0f502d0; frame = (0 0; 0 0); text = ''; clipsToBounds = YES; opaque = NO; layer = <CALayer: 0x7fcff0f50820>>
|    |    | <_UISearchBarSearchFieldBackgroundView: 0x7fcff0d3d100; frame = (0 0; 0 0); opaque = NO; autoresize = W+H; userInteractionEnabled = NO; layer = <CALayer: 0x7fcff0d22a40>>
|    | <UINavigationButton: 0x7fcff0c4a170; frame = (0 0; 54 30); opaque = NO; layer = <CALayer: 0x7fcff0c07ea0>>

for (UIView *view in [[_searchBar.subviews lastObject] subviews]) {
    if ([view isKindOfClass:[UIButton class]]) {
        UIButton *cancelBtn = (UIButton *)view;
        [cancelBtn setTitle:@"搜索" forState:UIControlStateNormal];
    }
}

UISearchBar自定义取消按钮

原文：http://blog.csdn.net/u014656271/article/details/44655127